The Welsh Language
Cymraeg, the welsh language, which is spoken today by near to 900,000 people (annual population survey 2023) developed from Brythoneg, the original language of Great Britain, which was spoken at one time throughout the island.
Although it’s been influenced by other languages, mainly latin and english, it’s remained relatively pure, and that’s good news. It means that vast majority of place names have remained unchanged and uncorrupted.
And they’re also very descriptive, so learning a bit of vocabulary can unlock their meaning and provide a window into the history or legends that lie behind them (Llyn Idwal – Idwal’s Lake or Pen Llithrig y Wrach – Slippery Hill of the Witch) or they can describe the lie of the land, and give clues to the conditions a walking route will come across (Bwlch Main – Narrow Pass, Crib Goch – Red Ridge).

Initially, it might be a bit daunting for english speakers (we have a few extra vowels, and there’s a thing called mutation where the first letter of a word can change) but here’s the other good news – the rules of grammar, and pronunciation, stay constant. Learn them once, and you’re good to go. You don’t also have to learn a load of exceptions as say with the ‘ough’ sound in english (is it pronounced as in ought …. or as in rough, cough, bough, or dough?!)
Glossary
There’s a basic vocabulary of landscape terms here.
To learn more, scroll down for some useful links.
| Aber | Estuary, Confluence |
| Afon | River |
| Allt | Hillside, Slope |
| Bach, Bychan | Small |
| Bryn | Hill |
| Bwlch | Pass |
| Caer | Castle |
| Carn, Carnedd | Cairn |
| Carreg | Stone |
| Clawdd | Dyke, Embankment |
| Coch | Red |
| Craig | Rock |
| Crib | Ridge |
| Coed | Woodland |
| Cors | Marsh |
| Cwm | Valley, Corrie |
| Du | Black |
| Dyffryn | Valley |
| Ffordd | Road, Route |
| Ffynnon | Spring, well, fountain |
| Glas | Blue (historically, Blue or Green) |
| Glyn | Valley |
| Gwyn | White |
| Llwyd | Grey |
| Llwybr | Path |
| Llyn | Lake, Tarn |
| Maen | Stone |
| Mawr | Big |
| Moel | Rounded moorland hill |
| Mynydd | Mountain |
| Nant | Stream |
| Ogof | Cave |
| Pen | Top or summit, End |
| Pont | Bridge |
| Rhaeadr | Waterfall |
| Rhiw | Slope |
| Rhos | Moor |
| Trum | Ridge |
Want to know more?

There’s a fantastic guide, and comprehensive glossary of welsh place names on the Ordnance Survey website.
Click here

For a ‘quick win’ on pronunciation, check out the ‘Galés con Marian – Welsh with Marian’ YouTube channel, and this video covering the names of 20+ iconic peaks in Eryri.
Click here